Traction-wheel



F. M. HEINIG.

TRACTION WHEEL.

APPLICATION FILED MAY 27, I9I9.

1,333,074, Patented Mar. 9,1920.

y truncation-WHEEL.;

To all .whom it may concern Be it known that -I-v, FRANK M. HErNre, al

citizenof the United States, and resident of,

Vatertown, Ain the countyof Jederson and;

\ State of Wisconsin, have invented new and useful Improvements in Traction Wheels, of which'the following is a description, reference `being had *toV the accompanying drawings, which are apart of this specification. n

The present invention relates to certain new and usefulimprovements in traction wheels and refers morev particularly to the Vtraction wheel teeth construction. Y j

The primary: object of this inventionV 1s toiv providemeans cooperating with the traction wheelteeth to free .the same from dirt, mud

or other foreign matter whichl may cling to the teeth.

My invention has fora further object to provide a traction wheeltooth cleaning device which is urged to operating position at all times. v Y n f Y With the above and other objects in view, which will appear as theA description proceeds, my invention Yresides inl thel novel construction, combinationand arrangement of parts substantiallyl as hereinafter described and more particularly defined by the appendedclaims, it being understood that such changes in the precise embodiment of ,l the hereindlsclosed lnvention maybe made as come within the scopeof'theclaims.

In the accompanying drawlng,` I have illustrated lone complete example of the physical embodiment of my invention, con-y structed accordingto the best mode Iv have ,so far devised for the `practical vapplication K of the principles thereof, and in which Figure 1 is aview of a portion ofthe run and spokes of a tractlon wheel, said vlew 'having parts broken away and in section kto more clearly illustratethe structural details of my invention. f l

Fig. 2 is a plan view of the Iinner surface of a portion of a wheel rim with my lnven-y tion attached thereto.

Ato

Fig. Bis a View similarto `Fig'. 2 ofthe outer surface of the,rim,.and y. y n

Fig. L is a sectional view .taken trans' versely through the rim on the'line" 1 4 of Fig. 1. Y' Y Ieferring now more particularly to the Y accompanying drawing in which y5 designates a traction wheel rim having the usual inwardly extending spokes 6 and securedto the outer peripheral surface. of the rim 5 kSpecifcaton of Letters Patent.

i -Man 9,

y applic-ation inea Mays?, 1919.1"se'ria1 No. 300,092,

I is a plurality of spaced-apart traction teeth 7 ,Yl said teeth being vrightfangula'r in cross section and vsecured to the rim by means of bolts8.y l

My invention consists cfa movable plate 9,A positioned alongside one of' the teeth i' i' l and carriedV by the flanged outer end 10 of a'bell crank lever ll1 which 'extends inwardly through an opening 12 inthe riinadjacent said tooth; The bell crank lever 11 has pivotedat its apex as at'13 yon'e'end'of albar or link 14 which has its other end bifurcated as at 1.3 and. secured in the eye ofian eyebolt 16 by means of apivotpin 17, andsaid eye-bolt passing through the `rim- 5 andas# sisting in securing theadjacent tooth 7 to the rim. As best shown in Figa, lthe free z arm 18 of the bell f crank lever is flanged to provide a shoulder 19 adapted to abut bar 14 `when'the plate 9'is at itsl outer limit of movement juxtaposed the outeredge of the adjacent tooth 7. For yieldingly urging the plate 10 to its outer limit of movement, I provide a spring 20'which has its intermediate f portion coiled about the pivot 17- of the bar 14 as1at21 and then extendedv in opposite directions, one endZQ,v fbearing against" the rim 5 and the other endvbeing bent as` at 23 and bearing upon the arm. 18 of the bell crank lever near `its end, the spring 2O Y beingV so constructed as to lnormally urge v the bell crank lever toward the rim 5 kas best illustrated in Fig. l;

While I have only described one movable devices may be carried by the traction wheelv ias desired. ,Y Y

From the foregoing description taken in connectionv with -the accompanying drawing7 it will be readily apparent that the operationof my device is as follows: Astheportion of the rim 5 carryinfr one offmy devices engages .the ground, the spring Q0 will be overcome and the plate 9-.moved inwardly, and as that portion of the rim carrying the device disengages from the Iground, the

spring 20v will immediately urge the plate.v

9 to itsouter limit ofimovement through its connections hereinbe'fore described,and conkk9e tooth or plate 9 associated ywith onetooth 7, it will be understood that as many of saidl sequentlyl any mud or other foreign matter adhering to the adjacent tooth 7 will be re-v moved and thus the proper traction means is assured at all times. f

What I claim as my invention is: 1. A traction wheel tooth clearing device Y having. an. opening through its rim, a toot-hf comprising a Amovable toothV engaging one face of a fixed tooth secured to a Wheel rim, and means normally urging'- the movableV tooth to a position adjacent the outer end of the xed tooth, said movable tooth beingv movable inwardly under pressure.

adjacent Y the outerend ofthe hxed tooth.,

ing an opening through its rim, a xedtooth secured, to the, rim juxtaposed theopening, ya movable tooth havingits shank` passed through the opening, a, bar having one end piarotal'ly connected withv the inner peripheryot the rim and-its other end,` pivotally connected with, the shank of thewmovable tooth, and means engagea-ble- With said; hay

and tooth, ,shank or urging the movable4 tooth outwardly Y Y 4,' The *hereinl Vdescribed traction wheel having an opening throughits rim, a` tooth4 fixed to the rim juxtaposed the opening,` a second tooth movable along the faoeot the first tooth, a hell cnank lever having one.

arm secured to, the. second; tooth and extended through said opening, a bar having: j

one; end; pivotallyconnected with the inner prphelt L ofthe rim. and its other endzpiv-.-

oted tothe bollzorank lever near its apex, and? means foryieldingly urging the seoondr tooth outwardly ofV thefwheel,V rim.

5. The herein described@ traction. Wheel tix-edV to therim juxtaposed the opening, a

second tooth niovablei along thef face oftheH first tooth, a bell crank lever havingf one armisecuredito the second' toothand extended through vsaid o'pen1ng,a: bar having one endl fixed@ to the rim' juxtaposed the opening,` a

pivotally connected; `with the innen periphery of? the rim `and its other. end' pi-vot'ed` to the bell oranklever near its apex,and` springmeans engaging the. free end ot said bell crank lever,v foryield-ingly urging the secondv toothY outwardly of' thervvheel rim. Y

6.,.The vherein' described traction {Wheel} having'an opening through its rim, a toothsecond' tooth movableA along the face; of-'the first tootliyia bell crank lever havingonearm; secured to thesecond tooth and extended throughsaid opening, abar-havinggoneVV- end plvotall-y,connected with the inner-pe- 'Y Y ripheryoftherim and' its other'end pivot'ed` to the bell; crank lever near'its apex, andl The hereinldescribedtraction-Wheelhavspring means'enga-ging the free end of said bell'crank lever and the pivot of saidlbar connecting the same with: the rnn, said spring means yieldingly urging the secondv tooth outwardly at all times. Y

7. The herein described traction Wheel having'an opening through its rim, a tooth xedto; the', rim; juxtaposed the opening, a

Vsecond tooth movable along the face of the j first tooth, a ybelli crank' lever having-,Aone:v

armisecured. to the second toothi and extended through said' opening, a -bair having one end pivotal'ly connected` with; theiinnei: periphery offthe nimrand; its other endf pivoted toi the belli-crank lever neary its: apex, means on. the

tree. end ofi said belle crank lever for engagingsaidi bar when the. second tooth is at itsl outerlimit` offv movement', and: means urging said, second tooth to its outerlimit of movement. Y

S TheA herein fxed toA the rim juxtaposed the: opening, a second tooth movable along the 'tace of the. iirst tooth, a. bell crankl'even havingone arm secured to the secondtooth mid!extendedI through said opening, a third tooth spaced'VV from said opening andxed to-the rim, an eye-bolt passing through saldi thirdf tooth andu r1-In,a, harhaving oneaend: pivoted` to said eye-bolt and its other end pivotedftogt'he"` apex ofi' said bellV crank-lever, and" a spring' member having-its lntermediat'eportion endescribed-` traction. `ivl'ieel-i` having an opening throughitsrim, a' tooth gag-ing the pivot',betweensaid eye-bolt and said barand itsV` ends engaging the? free end? o tthe bell crank levenand 'a portiouofthe run.` j

9. The herein described tractionI Wheel having an opening-through its rim, atooth iixedl to the rim-A juxtaposed; the? opening,V asecondtooth movable alonglthe tace ofAV the first tooth,` a bell' crank leverhaving one arm secured-:to the secondi toothand extend'- ed through sa-idf opening,- a third tooth' spaced froml said openi'ngfand fixed to the rim, Van-eye-bolt passing througl'i said third Y toothfandfrlm, abarhavingione-Vendipivoted- Y tosaideye-bolt and its otherend pivoted to the apex oj'sai'd bellcrank lever, aA spring member" having its medialV portionV coiled"- about the pivot between thebarand the eyebolt and having one endl impinging against the free end' of'safid; bellv crank' lever and its other endr`- imping-ing against the i7im and*` means onthe lfree, end ofthev belllcrank leverfor yabutting against the bar when` the second tooth 1s at ltsouter linut of movement.

` Intestimony Whe'reof'I mysignat-ure.

FRANK M.V HEINIG. 

